Jet-condenser and centrifugal vacuum-pump.



No. 864,811. PATENTED SEPT. 3, 1907.

B. THOENS.

JET CONDENSER AND OENTRIFUGAL VACUUM PUMP.

.APPLIOATIQN FILED MAR. 20. 1905.

avwwwroz 50 tion of the bearing PATENT OFFICE.

STATES BURCHARD rnoENs, on NEW YORK, n. Y.

JET-CONDENSER AN D CENTRIFUGAL VAC UUM-PUMP.

Specification of Letters Patent. Application filed Mal'oll 20, 1905.Serial No. 251,085;-

Iatante'd Sept. 3, 1907 To all whom it may concern:

Be it known that I, Buncrmnn THdENS, a subject of i New York, in the i-the German Emperor, residing at.

county of New York and State of New York, have invented certain new anduseful Improvements in Jetif and'use the same.

My invention relates to improvements in jet condensers and centrifugalvacuum pumps, and itsobject is to produce a device whereby the steam andair from evaporators, vacuum pans, steam turbines, condensing engines,etc., may be quickly and economically removed, condensed, anddischarged.

My invention consists in the construction and combinations of partshereinafter described and claimed. In'the accompanying drawings:.Figure1 is a verti- 9 cal section of my improved jet condenser andcentrifugal-vacuum pump. Fig. 2 is a cross section of the pump wheeland'its adjacent diffusion ring.

11 represents a vessel, preferably cylindrical in shape, which forms thebody of the condenser and is connectod by a pipe I) with the vaccuum pancvaporatoror engine. The top of the cylinder is partially closed by acasting c, forming a right angle with the body of the condenser a, and acasting d is suspended therein in proximity thereto so as to form anannular chamber into which water is delivered through the opening 6. Thepart c of the casting is perforated as shown at f, either in the 7 formof an annular opening or numerous small openings, which may be madeadjustable if desired. The top of the cylinder inside of the part disclosed by the horizontal partition g which is provided with a bearing 72in which is mounted the shaft t carrying the pump wheel, which shaftpasses through' an ordinary stufling box in the bearing h. This shaft iis revolved by a pulley or any suitable means (not shown). The body a of40 the condenser rests upon the casting j, which in turn rests upon asimilar shaped casting I: supported in any suitable manner, as by thecylinder l. The castings j and k are similar in shape and fit togetheras shown at m and form a receptacle for the Water, condensed steam,

4 and entminecl air.

The casting j is provided with a downwardly extcnding portion a with acentral opening as shown at o for the passage of the water and gases.The bottom of the casting I: is closed except for an opening for therecepp in which the lower reduced end q of the shaft 1' rests. Below theend q the opening in the bearing 5 is enlarged as shown at r for thereception of lubricating material or fluid, which is forced in throughthe pipe 8, which pipe is screw-threaded into the'bottomof the bearingp. The casting I0 is provided with an upwardly projecting ring 1., andthe casting j is provided with a downwardly projecting ring it; bothrings are arranged opposite each other, but not quite meeting, leavingan annular opening for the reception of the stationary portion of thepump wheel called diffusion ring, which will be hereinafter described. h

Within the cylinder (1 and restingupon the portion 1;

of the casting j is a second cylinder 1) open at both ends.

This cylinder 4) receives the water showered down ,from' the annularchamber in the top of the condenser and delivers it upon the portion nof the casting j, which in turn delivers it into the pump wheel.

The cylinder 1 is provided with an inwardly projecting portion 10 whichsupports an annular right angled partition x open at the center asshown. The inner edge of this partition extends-considerably nearer thecenter of the condenser than the inner edge of the partition 0, so thatthe water which drips downfrom the.

annular-chamber in the top of the condenser is forced C to pass towardsthe center of the condenser.

Below the partition 9; is arranged a circular partition y looselyencircling the shaft i. This is supported by means of bolts z fastenedto the partition :12. This partition does not extend out to the cylinder*0, but a space is lcft'bctween said partition and said cylinder for thepassage of the water, which is therefore forced to travel in a zigzagcourse through the cylinder 2). The main part of the steam and aircoming in through the pipe 1) passes up over the top of the pylinderuand down through said cylinder, but this cylinder is pro: vided with aseries of holes 1, arranged near the bottom thereof so that any eicccssof steam or any water condoused within the cylinder (1 may pass downinto the pump wheel. The pump wheel is mounted on the shaft 1' by meansof the spline or feather 2. It consists of a disk S-extending up to theshaft 2', and a disk 4 fixed to the disk 3 but annular in shape so thatthe water may pass, downwardly throughthe center thereof. The disk 4 isscparatedfroni the disk 3 by means of curved ribs 5, between which thewater passes outwardly.

On the top of the disk :1. and on the bottom of the disk 3 of the pumpwheelare arranged curved blades 6 for the purpose of aiding thecirculation, and to prevent any water from flowing back into thecondenser. Owing to the peculiar shape of the parts 3 and 4, afunnelshaped annular passage is formed throughflwhich the Water passes, whichfunnel shaped passage terminates in an annular discharge slot, whichslot is located within the stationary rings 7. These rings exactly fillthe space between the partitions z and wand consist of two plates ofsimilar shape, separated by opposite curved vanes 8, the object, ofwhich is to stop the rotary motion of the water and force it out throughthe slot 1) in the stationary part (-oiiperating with the pump whet-linto the annular chamberlit-tween the castings j and k.

10 represents a discharge pipe for the ct'indcnsing water and condensedsteam and air drawn t'rom tho evaporator, vacuum pan or engine.

'lhc operation as follows1-Tlie shaft 'L is set in motion and watersupplied through the pipe 0. Thi. water flows over the annular sprayplates x and y, and the steam and air lrom the twaporator, raeuum pan orengine enters through the pipe b, the steam being condensed and the airbeing carried along with and through the billing water. \\'lll('lltravelsin a zigzag course through the cylinder l.

'lhe condensing water, t'oiuleusetl steam and air are then delivereddownward through the opening into the pump wheel, which; as itrox'olvt-s. discharges the water between the cur 'cd \'t\llt' andthrough the annular slot t) of the (lil't'usion ring 7 and the air istlrawn through tho space between the revolving pump wheel antl thestationary pump (asing: or dil'l'usion ring into the annular chamberbetween the castings j and Ir, the water, air, etc, passing out, throughthe pipe 10.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is:-

l. in a combined jet condense and centrifugal vacuum pump. thccombination of a receptacle for the liquid, a diffusion rm;deliveringinto said receptacle and provided with a flaring: inner mouth,and a pump wheel journaled within said dit't'usion ring said pump Wheelconsisting of two pnrts joined by vanesi said parts being each providedwith vanes on their outside edges, the outer edge of said pump wheelentering' the flaring mouth on the inner part of tho ditlnsion ring.substantially as described.

2. in a combined l(l(lntllll.\'(.l and centrifugal vacuum pump thecombination of ca. ings forming an annular receptacle for the liquid. adiffusion ring delivering into said rechptaeie and composed of twoplates united by curved vanes, said plates llaring so as to form anenlarged mouth dir cted |oward the interior of the condenser, and ahorizontal pump wheel mounted inside of said receptacle and consisting,of two parts joined together by vanes,

said parts beiim each provided with curved vanes on their outside edges.and the upper part being provided with an annular opening the outsidecdgo of said pump wheel entering tho tlaring' mouth of said diffusionring. substantially as described.

in testimony whereof. I ailix my signature, in presence of two witnes.'9.

BURCIIARI) TI'IOENS.

Witnesses (llAliLES 1i. Lnvr, HANNAH BESTIIOFF.

